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ABB REB670
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en06000154_ansi.vsd
Zone A
Zone B
Bus-Coupler
Bay
REB 670
CTRLZA
CTRLZB
TRIP
CONNZA
CONNZB
Bxxx
I3PB1
BLKTR
TRZONE
TRBAY
BBP & BFP trip command to Bus-Coupler breaker
BOM
A/D
Parameter ZoneSel must be
set to "FixedToZA&-ZB"
tZeroCurrent=150ms
Other
Equipment
CT Input
TRM
External or Internal
Bus-Coupler BFP
Backup Trip Command
Bus-Coupler Backup
OC Trip
189
289
BI1
NO
NC
CLOSED
OPEN
ALARM
FORCED
SSxx
DISABLE
ZEROCUR
BIM
CB Closing
Signal
t
t=1s
b
OR
152
a
ANSI06000154 V1 EN-US
Figure 66: Bus coupler bay with one CT and a&b aux. contact from CB
Section 6 1MRK 505 370-UUS A
Differential protection
150 Busbar protection REB670 2.2 ANSI
Application manual

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